46results about How to "Reduce bandwidth waste" patented technology

The present invention relates generally to communication networks and more specifically to methods and devices for data communication over a communication network. A method according to the invention comprises, at a transmitting node: obtaining a plurality of frames including first-type frames associated with an acknowledgment policy requiring acknowledgment and second-type frames associated with an acknowledgment policy requiring no acknowledgment; aggregating the frames of the obtained plurality of frames into an aggregated frame including at least one leading frame of second type and frames subsequent thereto, in an order depending on their associated acknowledgment policies; sending the aggregated frame to a receiving node; and sending an acknowledgment request frame to the receiving node to request it to acknowledge receipt of only subsequent frames of the aggregated frame. Such data communication scheme is liable to reduce bandwidth waste and head-of-line blocking and thus latency, compared to known scheme.

An apparatus for authentication of fragments using hash trees may include a processor. The processor may be configured to provide one or more data fragments and a hash tree representing the one or more fragments, send at least one first fragment accompanied by any nodes of the hash tree necessary to authenticate the one or more first sent fragments, and send one or more subsequent fragments accompanied by only some, but not all, of the nodes of the hash tree necessary to authenticate the one or more subsequent fragments with the other nodes that are not sent but are necessary for authentication having been previously sent in conjunction with a prior fragment.

The present invention relates generally to network quality estimation using HTTP/2 push feature. When network quality estimation is required, a client web application requests a server to enter a probing mode. During the probing mode, the server pushes useful data to the application for the latter to perform the estimation. This avoids wasting bandwidth since the useful data are likely to be used by the application. Furthermore, during the probing mode, the server notifies the application of the push start and the push end of each pushed data. This is one using a web socket established with the application. This makes it possible to overcome the limitations of the application in accessing HTTP/2 features of a client browser. Based on the notifications, the application is able to perform accurate estimations.

A wireless network system and a wireless access point (AP) device and a wireless terminal device thereof are provided. The wireless network system includes at least a wireless AP device and at least a wireless terminal device. Each wireless AP device broadcasts a beacon including a load state content of the wireless AP device. Each wireless terminal device receives beacons of all wireless AP devices, and ranks load states of all wireless AP devices in a load list according to at least CPU utilization rates in the load state contents of all wireless AP devices respectively. When a wireless terminal device intends to establish a connection with one of the wireless AP devices, the wireless terminal devices searches through the load list to select a wireless AP device being in a low load state, and transmits a connection request message to the selected wireless AP device.

The invention discloses an SSD controller based on native PCIe interface and a control method of the SSD controller. The SSD controller is characterized by comprising the following steps that when a CPU writes data to an SSD, a DMA controller guides PCIe data flows in a PCIe terminal into a DDR controller and then buffers the PCIe data flows into a DDR, meanwhile, the CPU transmits description information of the data flows to a NandFlash controller through the DMA controller, an address control module judges the effectiveness of data after receiving the description information, the data flows are verified through an ECC module from the DDR, the data flows are converted into data flows of an ONFI interface time sequence through an LLD drive module and written into the SSD. Intermediate protocol conversion does not exist in the SSD controller of the native PCIe interface, expenditure is small, and bandwidth waste is few; parallel processing can be performed, and read-write speed of the SSD is high; no mechanical structure exists, the service life is long, the capacity for resisting severe environment is high, and industrial-grade storage requirements are met; the structure is simple, capacity configuration is flexible, and the SSD controller is not limited to upgrading of NandFlash chips.

The invention discloses a method for switching a terminal and a corresponding communication network. The communication network comprises a wireless side network element, an access gateway which is connected between the wireless network element and a packet data network, a mobility management node and an identity position register. In the process of switching the terminal, when a target access gateway different from the original access gateway is determined, the target access gateway allocates the identifier of a new position for the terminal and saves the mapping information of the identifier of the identity of the terminal and the identifier of the new position; a target mobility management node or the target access gateway initiates registration and updates the identifier of the position of the terminal in the identity position register to which the terminal belongs; and the terminal is switched from the original wireless side network element to a target wireless side network element, and is connected to the packet data network by the target wireless side network element and the target access gateway, so that data messages is encapsulated and forwarded between the terminal and a communication opposite end. Through the invention, the route detours of data packets can be reduced, transmission delay and bandwidth waste can be lowered.

The embodiments of present invention disclose a method and a device for making uplink standby, including: configuring more than one uplink for an Internet Group Management Protocol (IGMP) proxy device, and choosing one of the more than one uplink as a primary uplink; the IGMP proxy device replicating a multicast packet received over the primary uplink and sending the multicast packet replicated over a downlink to a multicast host. In the method provided by the embodiments of the present invention, only the primary uplink is used, which reduces the link bandwidth waste of the multicast host and improves the multicast data transmission efficiency. Flexible methods are adopted for checking the availability of the primary uplink so that the IGMP proxy device may detect in real time whether the primary uplink is available and choose a new primary uplink in time to guarantee the normal multicast communication.

A processor Cache write-in invalidation processing method based on memory access history learning includes the following procedures: (1) Cache invalidation preprocessing procedure; (2) Cache write-allocation strategy setting procedure includes that: the immediate write-allocation or delay write-allocation strategy of each group is set; (3) the group belonging to the immediate write-allocation immediately accesses the Cache block corresponding to the memory and reads the missing data of the group back, and integrates the missing data with the write-in data to form complete Cache block data, and writes the complete Cache block data into the corresponding Cache block; the group belonging to the delay write-allocation collects the write-in data of Cache write-in invalidation operation allocated in the group, and writes the write-in data directly into the corresponding Cache block when the write-in data of a certain group is fully collected in the whole Cache block. The invention can reduce great unnecessary operations of reading Cache block from the memory during the processing process of the Cache write-in invalidation, accordingly reduces the bandwidth waste of the process and further improves the performance of the application program.

The embodiment of the invention relates to the technical field of video processing, and discloses a live video processing method. The method comprises the following steps of: obtaining live source video streams of various visual angles; obtaining a to-be-downloaded video slice of each view angle according to the live broadcast source video stream of each view angle; receiving a live broadcast watching request of a playing device, and the live broadcast watching request comprising a first live broadcast main view angle; and in response to the live broadcast watching request, sending the to-be-downloaded video slice of the first live broadcast main view angle and the to-be-downloaded video slice of at least one side view angle adjacent to the first live broadcast main view angle to a playingdevice. According to the live video processing method and device and the storage medium provided by the embodiment of the invention, bandwidth waste during panoramic video transmission can be reduced.

The invention provides a framework and a method of the VOD system of an IPv6 network supported by handheld communication equipment, mainly overcoming the defects of image quality and data transmission that exist in the prior art. Image quality and transmission functional modules are respectively and additionally arranged on the handheld communication equipment and a network server, an answering solving agreement is provided and implementing detailed rules are provided for specific implementation, thereby improving the unobstructed degree of a data flow, reducing unnecessary transmission bandwidth and saving expenses and costs. Meanwhile, an idea of supporting clients based on classification and a method for utilizing existing resources are provided to promote supporting efficiency.